694380131 has 4 divisors (see below), whose sum is σ = 694552512. Its totient is φ = 694207752.

The previous prime is 694380107. The next prime is 694380133. The reversal of 694380131 is 131083496.

694380131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 694380131 - 2¹⁰ = 694379107 is a prime.

It is a super-2 number, since 2×694380131² = 964327532655154322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 694380091 and 694380100.

It is not an unprimeable number, because it can be changed into a prime (694380133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80000 + ... + 88253.

It is an arithmetic number, because the mean of its divisors is an integer number (173638128).

Almost surely, 2^694380131 is an apocalyptic number.

694380131 is a deficient number, since it is larger than the sum of its proper divisors (172381).

694380131 is a wasteful number, since it uses less digits than its factorization.

694380131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172380.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 694380131 is about 26351.0935446710. The cubic root of 694380131 is about 885.5214695151.

The spelling of 694380131 in words is "six hundred ninety-four million, three hundred eighty thousand, one hundred thirty-one".